Tuning the Wettability of Metal-Organic Frameworks via Defect Engineering for Efficient Oil/Water Separation

Yi Huang, Yang Jiao, Ting Chen, Yutao Gong, Songcheng Wang, Yang Liu, David S. Sholl, Krista S. Walton

Research output: Contribution to journalArticlepeer-review

Abstract

Zirconium-based metal–organic frameworks (MOFs) have attracted interest due to their chemical and thermal stabilities and structural tunability. In this work, we demonstrate the tuning of the wettability of a UiO-66 structure via defect-engineering for efficient oil/water separation. UiO-66 crystals with controlled levels of missing-linker defects were synthesized using a modulation approach. As a result, the hydrophilicity of the defect-engineered UiO-66 (d-UiO-66) can be varied. In addition, a thin layer of hydrophilic d-UiO-66 was successfully fabricated on a series of stainless steel meshes (d-UiO-66@mesh), which exhibited excellent superhydrophilic and underwater superoleophobic properties and displayed interesting separation performance for various oil/water mixtures.
Original languageEnglish
Pages (from-to)34413–34422
Number of pages10
JournalACS Applied Materials & Interfaces
Volume12
Issue number30
Early online date18 Jun 2020
DOIs
Publication statusPublished - 29 Jul 2020

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